本题目来源于试卷: Topic A1.1 Water，类别为 IB生物学
[问答题]
9. Outline two reasons why 5bw2ui ktijilm).92e cop1cog8 1onlx/ si: uu)nditions on the Earth retain water on its surface
参考答案: Water (Liquid and gaseous) is retained on Earth by the Earth’s gravity. / Earth has enough gravity for an atmosphere to be held around the Earth. The temperature of the Earth’s atmosphere is in the right range for vapour to condense into liquid water (less than 100°C)
本题详细解析:
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